d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082

General

Target

d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe
Size

2.2MB
MD5

1648497262104884c9cf5006cf77e4f5
SHA1

06b78cd50af4732402bbfc749aad8589291296a6
SHA256

d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082
SHA512

1b7037898ea1ee7003aca52aea27385435f53630ddc1769fcabc9aec1c85ae9e8749472e23d2004c5d521cd076e788b3315783cdc6eda24437d5830315846478
SSDEEP

49152:5l8eOqONmrsiYZi7OEaL7ynvmPpgeZ+UXVBRXJCnZxcrJNxo:5ZdC4/g7ZO3UXz2cDxo

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
940	irsetup.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000a0000000122fb-55.dat	upx
behavioral1/files/0x000a0000000122fb-57.dat	upx
behavioral1/files/0x000a0000000122fb-59.dat	upx
behavioral1/files/0x000a0000000122fb-60.dat	upx
behavioral1/files/0x000a0000000122fb-62.dat	upx
behavioral1/files/0x000a0000000122fb-61.dat	upx
behavioral1/memory/940-64-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe
940	irsetup.exe
940	irsetup.exe
940	irsetup.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\³¬¼¶FLASH²¥·ÅÆ÷ Setup Log.txt	irsetup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
940	irsetup.exe
940	irsetup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28
PID 2028 wrote to memory of 940	2028	d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe	28

C:\Users\Admin\AppData\Local\Temp\d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe
"C:\Users\Admin\AppData\Local\Temp\d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
  __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\d61725aa0ab018753005a51a9e942dc20187c7009201f85808a810fb71e3c082.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
memory/940-64-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/940-65-0x0000000000A80000-0x0000000000BA7000-memory.dmp

Filesize
1.2MB

Download
memory/940-66-0x0000000000A80000-0x0000000000BA7000-memory.dmp

Filesize
1.2MB

Download
memory/940-67-0x0000000000A80000-0x0000000000BA7000-memory.dmp

Filesize
1.2MB

Download
memory/2028-54-0x00000000753F1000-0x00000000753F3000-memory.dmp

Filesize
8KB

Download
memory/2028-63-0x0000000002470000-0x0000000002597000-memory.dmp

Filesize
1.2MB

Download

Analysis

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